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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) [2020] Payara Foundation and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://github.com/payara/Payara/blob/master/LICENSE.txt
 * See the License for the specific
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 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
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 * file that accompanied this code.
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 * Modifications:
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package fish.payara.nucleus.microprofile.config.source;

import org.glassfish.config.support.TranslatedConfigView;

import java.util.Map;
import java.util.Properties;
import java.util.stream.Collectors;

/**
 * Config source for the payara-expression-config.properties file. This config source runs properties through the
 * TranslatedConfigView class to perform substitutions on aliases, system properties, and environment variables.
 *
 * @author Andrew Pielage 
 */
public class PayaraExpressionConfigSource extends PayaraConfigSource {

    private final Properties properties;

    public PayaraExpressionConfigSource(Properties properties) {
        super();
        this.properties = properties;
    }

    @Override
    public int getOrdinal() {
        return Integer.parseInt(configService.getMPConfig().getPayaraExpressionPropertiesOrdinality());
    }

    @Override
    public Map getProperties() {
        return properties.entrySet().stream().collect(
                Collectors.toMap(e -> e.getKey().toString(), e -> getValue(e.getValue().toString())));
    }

    @Override
    public String getValue(String property) {
        String payaraExpression = properties.getProperty(property);

        // Null check for payaraExpression done in TranslatedConfigView.expandValue(payaraExpression)
        String value = TranslatedConfigView.expandValue(payaraExpression);

        // If returned value is null, or is the same as the pre-expanded payaraExpression, this means no match was found
        if (value == null || value.equals(payaraExpression)) {
            return null;
        }

        return value;
    }

    @Override
    public String getName() {
        return "Payara Expression Properties";
    }

    PayaraExpressionConfigSource(boolean test, Properties properties) {
        super(test);
        this.properties = properties;
    }
}